i just want to ask if thats a good idea to abbreviate looking_at_viewer to lav and make it an alias?

pov is an accepted shorthand for point of view, but abbreviating looking_at_viewer would be pointless and confusing.

I'd like something shorter for looking_at_*, but I can't think of anything right now. Plus it's an accepted everyday abbreviation for lavatory (toilets / washrooms / your-local-euphemism). Around here, anyway.

/me probably bears a lot of responsibility for the original pov shorthand, which really means 1ppov anyway.

Doing relations between tagged entities is hard in this system because the tags string is both unordered and ungrouped. That's not a flaw in the system, mind, just a limit to how expressive it can be.